Innersole-leveling knife.



F. M. DORE.

INNERSOLE LEVELING KNIFE.

APPLICATION man JUNE 21. l9l6.

1,21 1,555. Patented Jan. 9, 1917 amvzutoz DORE m: mum's PETERS m, PHDHTLIHNL. WASNH'IEYDN, n. c.

sure. a

FRANK M. DORE, O'F HELENA, MONTANA.

INNERSOLE-LEVELING KNIFE.

Application filed June 21, 1916.

To all whom it may concern:

Be it known that I, FRANK M. Donn, a citizen of the United States, residing at Helena, in the county of Lewis and Clark and State of Montana, have invented certain new and useful Improvements in Innersole-Leveling Knives, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to knives for working on shoes and particularly to a knife designed for leveling or trimming the surface of shoe insoles.

The insole of a shoe extends out and against the vamp. As a consequence, after the shoe is worn, the vamp has a tendency to pull up the edges of the insole, thus making it uncomfortable for the wearer. Again, a shoe after being worn has a tendency to take the form of the wearers foot. There is a slight hollow in the foot near the toes and frequently the insole bulges or warps up at this point and it is necessary to level off this portion of the insole.

The main object of my invention is the provision of a tool so formed that it may be used for leveling the inner face of an insole either by cutting away the upwardly bulged portion at any point or leveling off the edges of the insole.

A further object of the invention is the provision of a knife peculiarly adapted for this purpose which is so formed as to make it impossible to cut the vamp while leveling the edges of the insole which are bulged up at the vamp.

A further object is to so form the shank of the knife that the knife or cutter may be inserted to any portion of the shoe and particularly into the toe of the shoe.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a perspective view showing my improved implement in use; Fig. 2 is a perspective view partly in section, showing one manner of using the implement; Fig; 3 is a sectional view through a shoe showing the manner in which the implement is used adjacent the vamp of the shoe; and Fig. 4c is a sectional view of the implement and a portion of the shoe.

Referring to these figures, 10 designates the shank of the knife and the extremity of Specification of Letters Patent.

Patented Jan. 9, 1917.

Serial No. 104,987.

this shank is widened laterally and turned over to form a downwardly and rearwardly curved blade 11 which is transversely very slightly rounded. The forward edge 12 of this blade is slightly rounded but the side edges 13, while outwardly or laterally rounded, are blunt. It will be seen that these side edges 13 extend laterally beyond the cutting edge 12 a slight distance so that when this knife is used at any point adjacent the vamp, the vamp will be pushed out by the edge 13 and will not come in contact with the cutting edge 12, thus enabling the user to level off the edge of the insole without there being any danger of cutting the vamp. It will be noted that the edge 12 is formed by grinding oh" the outside of the blade instead of the inside as it is much easier to sharpen the outside of the blade than the inside.

The shank 10 is slightly curved or upwardly bent instead of being straight as this permits the implement to be forced down into the toe of a shoe and further permits the utmost freedom of movement of the implement within a shoe. The shank of course is provided with a handle 14 to permit a firm grasp of the tool.

In Fig. 2 I show the knife as being used for leveling or shaving ofl protuberant portions of the insole and the use of the knife will be obvious from this figure.

It will be seen from the figures that the blade or cutting edge of this knife is almost, but not quite straight and consequently rests almost fiat upon the insole when the implement is placed in position for operation, while the side edges 13 of the blade are very sharply curved.

Having described my invention, what I claim is:

1. An insole trimming or leveling knife comprising a shank terminating in a widened portion bent downwardly and rearwardly, the end edge of said portion being sharpened to form a cutting edge, and the side edges of said portion being blunt and extending laterally beyond said cutting edge.

2. An insole trimming or leveling knife comprising a shank terminating in a widened portion bent downwardly and rearwardly, the end edge of said portion being rounded and sharpened to form a rounded cutting edge, and the side edges of said portion being rounded but blunt and extendblunt and rounded and extending laterally ing laterally beyond the cutting edge. beyond said cutting edge. 10 3. An insole trimming or leveling knife In testimony whereof I hereunto afiix my comprising a curved shank terminating signature in the presence of two witnesses.

in a widened portion bent downwardly and FRANK M. DORE. rearwardly, the end edge of said portion be- Witnesses:

ing sharpened to form a curved cutting edge, EDGAR M. HALL,

and the side edges of said portion being CARL RAsoH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

